Position detecting apparatus for use with image blur correcting

Details Position detecting apparatus for use with image blur correcting Position detecting apparatus for use with image blur correcting

1997-04-10

1999-10-26

Allen, Stephone

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

348208, 396 55, G03B 500, G03B 1336

Patent

active

059733195

ABSTRACT:
A position detecting apparatus applied to an image blur correction device having a movable member has a light emitting device, a reflecting member for reflecting light from the light emitting device, which has portions with different reflectivities and in where a position upon which the light from the light emitting device impinges changes according to movement of the movable member, and a light receiving device for receiving light reflected by the reflecting member and for outputting a signal representing a position of the position-detected object in accordance with the light received, thereby realizing the position detecting apparatus in the simplified and cost-reduced configuration. Further, the above position detecting apparatus is used for position detection of a movable member for preventing an image blur in an image blur correction apparatus or a movable optical member in an optical apparatus, thereby simplifying the configuration and decreasing the cost for the image blur correction apparatus or the optical apparatus.

REFERENCES:
patent: 5126561 (1992-06-01), Nakazawa et al.
patent: 5243462 (1993-09-01), Kobayashi et al.
patent: 5596366 (1997-01-01), Takashima et al.
patent: 5619735 (1997-04-01), Kai
patent: 5689369 (1997-11-01), Noguchi
patent: 5815742 (1998-09-01), Hamada et al.

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